Micro steaming and baking kitchen appliance

Abstract

The invention belongs to the technical field of kitchen appliances, and particularly relates to a micro steaming and baking kitchen appliance which comprises a rack, an inner container is arranged in the rack, and an inner cavity used for containing food is formed in the inner container; a steam heating system for heating food, a baking system and a microwave system are arranged in the rack; the microwave system comprises a microwave generator assembly and a wave stirring assembly; a wave stirring part is arranged on the inner container, a wave stirring cavity is formed in the wave stirring part, and the wave stirring cavity is communicated with the microwave generator assembly and the inner cavity; the wave stirring assembly comprises a wave stirring plate rotationally arranged in the wave stirring part; the sealing plate fixing ring and the sealing plate sealing piece sealed on the wave-transparent sealing plate are arranged to seal gaps between the wave-transparent sealing plate and the sealing plate fixing ring as well as between the wave-transparent sealing plate and the inner container, so that water vapor in the inner container is prevented from leaking into the wave stirring assembly to affect normal work of the wave stirring assembly, and the stability of the oven during working is improved.

Description

Technical Field

[0001] This patent application belongs to the technical field of kitchen appliances, and particularly relates to a microwave oven and steamer kitchen appliance. Background Art

[0002] For example, Chinese invention patent 2019111115425 discloses a steamer, oven and microwave oven all-in-one, which includes a waveguide tube and a microwave agitator. A microwave penetrating plate is installed on the inner side of the top plate of the cooking cavity, and a stirring wave cavity is formed between the microwave penetrating plate and the top plate of the cooking cavity. The waveguide tube is arranged on the outside of the stirring wave cavity, and the microwave agitator is arranged inside the stirring wave cavity. The barbecue generating device includes an upper heating tube and an auxiliary heating tube. The upper heating tube is installed on the inner side of the top plate of the cooking cavity and is located below the microwave penetrating plate. The auxiliary heating tube is located outside the cooking cavity and is installed on the top of the stirring wave cavity.

[0003] This patent has the following defects:

[0004] 1. The sealing effect between the waveguide and the inner pot is not good. When the all-in-one machine is performing steaming and baking operations, the steam generated by steaming and baking will leak into the waveguide, thereby affecting the normal operation of the waveguide and the corresponding microwave generator.

[0005] 2. Given that the patented microwave oven integrates a microwave generator, a heating tube and an auxiliary heating tube, when the heating tube and the auxiliary heating tube operate simultaneously, the heat generated by them will be conducted to the microwave generator, which may cause the microwave generator to overheat and be damaged, thereby affecting its service life. Summary of the Invention

[0006] The purpose of this patent application is to provide a microwave oven with better sealing performance.

[0007] The purpose of this patent application is achieved as follows:

[0008] A microwave oven and steamer kitchen appliance comprises a frame, wherein an inner container is provided in the frame, and an inner cavity for placing food is provided in the inner container; the frame is provided with a steam heating system and a microwave system for heating food;

[0009] The microwave system includes a microwave generator component and a stirring wave component;

[0010] The inner container is provided with a stirring portion, the stirring portion is provided with a stirring cavity, and the stirring cavity is connected to the microwave generator assembly and the inner cavity respectively;

[0011] The stirring component comprises a stirring plate rotatably arranged in the stirring part; a wave-transmitting sealing plate is provided between the stirring cavity and the inner cavity to separate the two, and a sealing plate sealing member is provided on the edge of the wave-transmitting sealing plate.

[0012] Furthermore, it also includes a sealing plate fixing ring, which is sealed on the side of the stirring part facing the inner tank and is connected to the inner tank at the outer edge of the stirring part. The edge of the wave-transmitting sealing plate is clamped between the sealing plate fixing ring and the inner tank, and the sealing plate seal is provided between the sealing plate fixing ring and the inner tank.

[0013] Furthermore, the sealing member has a first rib and a second rib, and the first rib and the second rib respectively abut against the outer edge of the wave-transmitting sealing plate and a side surface of the wave-transmitting sealing plate.

[0014] Furthermore, a clearance groove is provided on the edge of the sealing plate fixing ring, and the clearance groove accommodates the first rib or the second rib of the sealing plate sealing member.

[0015] Furthermore, the microwave system further comprises:

[0016] The microwave heat dissipation bracket is used to be arranged on the microwave oven; the microwave heat dissipation bracket is provided with an air inlet and an air outlet, and a heat dissipation duct connecting the air inlet and the air outlet is formed inside the microwave heat dissipation bracket;

[0017] a heat dissipation fan, disposed in the heat dissipation duct;

[0018] The microwave generator assembly is arranged in the heat dissipation duct and is used to generate microwaves;

[0019] The heat dissipation fan is responsible for generating airflow to cool the microwave generator assembly;

[0020] The microwave heat dissipation bracket comprises:

[0021] A heat dissipation bracket base, which is used to be set on the microwave oven;

[0022] The heat dissipation support upper cover is fixed on the heat dissipation support base; the heat dissipation air duct is formed between the heat dissipation support base and the heat dissipation support upper cover.

[0023] Furthermore, the microwave generator assembly includes a frequency converter and a magnetron connected to each other, the heat dissipation bracket upper cover includes a first upper cover portion and a second upper cover portion, and the frequency converter is installed in the first upper cover portion;

[0024] The magnetron includes a mounting shell and a magnetron assembly arranged in the mounting shell. Open windows are provided on both sides of the mounting shell. The second upper cover is buckled on the part of the mounting shell with the open windows and is connected to the heat dissipation bracket base.

[0025] Furthermore, it also includes a waveguide component, which is connected to the microwave generator component and is used to guide microwaves; the waveguide component includes:

[0026] a waveguide box connected to the microwave generator assembly; a first inclined waveguide channel and a second horizontal waveguide channel are sequentially formed in the waveguide box; and

[0027] The disruptor block is made of metal and is fixed in the second waveguide channel.

[0028] Furthermore, the waveguide box is provided with a stirring opening, and the stirring component is connected to the waveguide component; the stirring component includes:

[0029] A stirring wave driving member fixed on the waveguide box;

[0030] a stirring rod, which is inserted into the stirring opening and is driven to rotate by the stirring driving member; and

[0031] The stirring plate is connected to the stirring rod and is located outside the stirring opening; the stirring plate is driven to rotate by the stirring rod.

[0032] Furthermore, the stirring bar comprises:

[0033] a rotating rod portion, which is rotatably arranged in the waveguide box; and

[0034] An extension sleeve is sleeved on one end of the rotating rod and connected to the stirring plate at the other end; a plurality of sliding positioning holes are provided on the extension sleeve and the rotating rod, which are used to fix the rotating rod and the extension sleeve by passing sliding positioning rods through the sliding positioning holes.

[0035] Furthermore, it also includes a baking system, which includes a first heating tube arranged in the inner tank, the first heating tube is located in front of the wave-transmitting sealing plate, and a wave-transmitting opening opposite to the wave-transmitting sealing plate is formed on the first heating tube.

[0036] Compared with the prior art, the outstanding and beneficial technical effects of this patent application are:

[0037] 1. This patent provides the sealing plate fixing ring and the sealing plate sealing member sealed on the wave-transmitting sealing plate to seal the gap between the wave-transmitting sealing plate, the sealing plate fixing ring and the inner tank, so as to prevent the water vapor in the inner tank from leaking into the wave stirring component and affecting the normal operation of the wave stirring component, thereby increasing the stability of the oven described in this patent during operation.

[0038] 2. The sealing member of the sealing plate in this patent includes a first rib and a second rib, which form two seals in front and back, which can better prevent water vapor in the inner cavity from entering the wave stirring part from the edge of the wave-transparent sealing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural diagram of an oven.

[0040] Figure 2 This is a diagram of the inner and outer chambers of an oven.

[0041] Figure 3 This is a schematic diagram of the microwave system installation.

[0042] Figure 4 This is a schematic diagram of the connection between the microwave system and the inner tank.

[0043] Figure 5 yes Figure 4 Schematic cross-section of the waveguide assembly.

[0044] Figure 6 This is a disassembled schematic diagram of the microwave heat dissipation bracket.

[0045] Figure 7 This is a schematic diagram of the disassembly of the waveguide box.

[0046] Figure 8 It is a schematic diagram of the inner structure of the waveguide box.

[0047] Figure 9 This is a schematic diagram of the disassembly of the heat sink bracket base and the heat sink bracket cover.

[0048] Figure 10 It is a structural diagram of the stirring wave component.

[0049] Figure 11 It is a cross-sectional schematic diagram of the stirring wave component.

[0050] Figure 12 This is a schematic diagram of the structure inside the oven.

[0051] Figure 13 is a schematic cross-sectional view of an oven.

[0052] The meaning of the numbers in the figure:

[0053] 2. Frame; 21. Inner chamber; 211. Stirring unit; 212. Stirring chamber; 213. Inner chamber; 22. Outer chamber;

[0054] 3. Microwave heat sink bracket; 31. Air inlet; 32. Air outlet; 33. Heat dissipation duct; 34. Heat dissipation fan; 35. Heat sink bracket base; 36. Heat sink bracket upper cover; 361. First upper cover portion; 362. Second upper cover portion;

[0055] 4. Microwave generator assembly; 41. Frequency converter; 42. Magnetron; 421. Mounting housing; 422. Magnetron assembly; 424. Opening window; 425. Antenna;

[0056] 5. Waveguide assembly; 51. Waveguide box; 511. First waveguide channel; 512. Second waveguide channel; 513. Tuning rod; 514. Waveguide groove; 515. Wave stirring opening;

[0057] 6. Stirring assembly; 61. Stirring drive element; 611. Stirring motor; 612. First stirring drive plate; 613. Second stirring drive plate; 62. Stirring rod; 621. Rotating rod; 622. Extension sleeve; 623. Sliding positioning hole; 624. Sliding positioning rod; 63. Stirring plate; 631. Stirring convex portion; 64. Wave-transmitting sealing plate; 641. Sealing plate fixing ring; 6411. Giving groove; 642. Sealing plate sealing member; 6421. First rib; 6422. Second rib;

[0058] 7. Steam heating system; 71. Water tank assembly; 72. Boiler system;

[0059] 8. Microwave system;

[0060] 9. Baking system; 91. Rack cooling fan; 92. First heating tube; 921. Wave-transmitting opening; 93. Third heating tube; 94. Air frying fan; 95. Air frying ventilation plate; DETAILED DESCRIPTION

[0061] The present patent application is further described below in conjunction with specific embodiments:

[0062] A microwave oven kitchen appliance, combined with Figure 1 、 2 As shown, the kitchen appliance comprises a frame 2, within which are housed an inner pot 21 and an outer pot 22. One side of the inner pot 21 is open, with a door provided to enclose the inner pot 21. The inner pot 21 has a cavity 213 for placing food, and the outer portion of the inner pot 21 is provided with heating components. The outer pot 22 is located above the inner pot 21 and is fixedly connected to the frame 2 of the kitchen appliance. A steam heating system 7 for generating steam, a baking system 9 for increasing temperature, and the microwave system 8 are also located outside the inner pot 21. These steam heating system 7, baking system 9, and microwave system 8 are generally located on the outer pot 22 or the housing.

[0063] like Figure 2 As shown, the steam heating system 7 includes a water tank assembly 71 and a boiler system 72. The water tank assembly 71 is installed above the inner pot 21 to provide the moisture required for steaming and baking. The boiler system 72 is arranged on the rear side of the inner pot 21 and is connected to the water tank assembly 71 to convert the water in the water tank assembly 71 into steam and provide it to the inner pot 21 to heat the food. The boiler system 72 has a plurality of pipelines, which are connected to the inner pot 21 to provide steam for the food in the inner pot 21 to achieve heating.

[0064] In which, the inner tank 21 is provided with a stirring part 211, the inlet end of the stirring part 211 is connected to the microwave generator assembly 4, and the outlet end of the stirring part 211 is connected to the inner cavity 213, and a stirring plate 63 is rotatably provided in the stirring part 211; the stirring part 211 is provided with a wave-transmitting sealing plate 64 that is enclosed between the stirring part 211 and the inner cavity 213, and a sealing plate seal 642 is provided on the edge of the wave-transmitting sealing plate 64.

[0065] Specifically, the microwave system 8 in this patent includes a microwave heat dissipation bracket 3, a microwave generator component 4, a waveguide component 5, a stirring component 6 and a heat dissipation fan 34. Figure 3 、 4 As shown, the entire microwave system 8 in this patent is installed on one side of the outer container 22. A rack cooling fan 91 is provided in the center of the outer container 22. The rack cooling fan 91 operates to generate airflow to dissipate heat from the outer container 22 and the inner container 21 in the rack 2, thereby preventing the electrical components outside the inner container 21 from being at a high operating temperature. The microwave cooling bracket 3 is installed on one side of the rack cooling fan 91. The microwave cooling bracket 3 in this patent includes a cooling bracket base 35 and a cooling bracket upper cover 36. The cooling bracket base 35 is used to be fixed to the outer container 22. The cooling bracket upper cover 36 is fixed to the cooling bracket base 35. The cooling air duct 33 is formed between the cooling bracket base 35 and the cooling bracket upper cover 36.

[0066] Combine Figure 3 、 4 As shown in Figures 6 and 7, the heat dissipation bracket base 35 in the present patent is provided with a plurality of connection pairs on the outer edge thereof, and threaded holes are provided on the connection pairs, which are fixed to the outer tank 22 by setting screws in the threaded holes. The heat dissipation bracket base 35 is in the shape of an elongated strip as a whole, and its outer edge has a vertical annular edge, and an installation space is formed in the annular edge. The heat dissipation fan 34 and the microwave generator assembly 4 are installed in the installation space in the heat dissipation bracket base 35. After the heat dissipation bracket upper cover 36 is installed in the heat dissipation fan 34, the heat dissipation fan 34 and the microwave generator assembly 4 located in the heat dissipation bracket base 35 are closed by the heat dissipation bracket upper cover 36 to form a heat dissipation air duct 33.

[0067] Specifically, the microwave generator assembly 4 in this patent includes a frequency converter 41 and a magnetron 42 connected to each other. The frequency converter 41 and the magnetron 42 are arranged in sequence along the front and back of the microwave heat dissipation bracket 3. The magnetron 42 specifically includes a mounting shell 421, a magnetron assembly 422 arranged in the mounting shell 421, and an antenna 425 located at one end of the mounting shell 421. The magnetron assembly 422 located in the mounting shell 421 is supported by the mounting shell 421. When working, the magnetron assembly 422 generates microwaves and emits them outward through the antenna 425. The frequency converter 41 is used to control the operating frequency of the magnetron 42 to obtain microwaves of a specified frequency. The magnetron assembly 422 generally includes a cathode, an anode and a permanent magnet arranged in an installation shell. The cathode is used to heat to generate electrons, and make the electrons rotate between the anode and the permanent magnet to generate microwaves; the antenna 425 is connected to one side of the installation shell 421 and is connected to the magnetron assembly 422 inside the installation shell 421. The microwaves generated between the cathode, anode and permanent magnet will be emitted outward from the antenna 425.

[0068] Correspondingly, the heat dissipation bracket upper cover 36 includes a first upper cover portion 361 and a second upper cover portion 362; the first upper cover portion 361 is located in the front half of the heat dissipation bracket base 35, and its shape is adapted to the shape of the front half of the heat dissipation bracket base 35. Corresponding connecting columns are provided on the first upper cover portion 361 and the front half of the heat dissipation bracket base 35, and the connection is achieved by arranging fasteners in the connecting columns; the inverter 41 is installed in the front half of the heat dissipation bracket base 35 and is enclosed by the first upper cover portion 361.

[0069] The second upper cover portion 362 is located on the rear half of the heat dissipation bracket base 35; the magnetron 42 in this patent has a larger transverse volume, and the magnetron 42 itself has a mounting shell 421, such as Figure 6 、 9As shown, the cathode and anode in the magnetron assembly 422 are arranged in the mounting shell 421 in sequence, and the middle two sides of the mounting shell 421 are provided with connected open windows 424. In this patent, the extension direction of the open window 424 toward the heat dissipation duct 33 is opposite, and the cathode and anode are connected to the heat dissipation duct 33 through the open window 424; at this time, the second upper cover part 362 will be buckled on the part of the magnetron 42 shell provided with the open window 424, and the edge of the second upper cover part 362 will fit with the outer wall of the mounting shell 421, that is, the edge of the second upper cover part 362 will fit with part of the mounting shell 421 and be connected by fasteners. At this time, the open window 424 of the mounting shell 421 is opposite to the heat dissipation duct 33, which can facilitate the operation of the heat dissipation fan 34 in the heat dissipation duct 33 to dissipate heat from the anode. Moreover, this layout makes good use of the mounting shell 421 of the magnetron 42 itself, so that the mounting shell 421 and the microwave heat dissipation bracket 3 are connected as a whole, effectively saving the installation space on the outer tank 22 and making the overall layout more scientific.

[0070] The outer end of the second upper cover 362 is slightly arched, which is connected to the upper side of the outer liner and cooperates with the outer liner 22 to form an air outlet 32 ​​of a heat dissipation duct 33, and the air outlet 32 ​​is connected to the front side of the frame 2 of the kitchen appliance. Figure 6 、 7 As shown in Figures 9 and 9 , the heat dissipation fan 34 is arranged at the front half of the heat dissipation bracket base 35 and is located in front of the microwave generator assembly 4. The heat dissipation fan 34 is specifically an impeller fan, which is fixed to the heat dissipation bracket base 35 by fasteners. Accordingly, the air inlet 31 is arranged at the top of the microwave heat dissipation bracket 3, that is, located on the first upper cover portion 361.

[0071] When the heat dissipation fan 34 is operating, it draws air through the air inlet 31. The airflow then passes through the inverter 41 and magnetron 42, and is discharged outward through the air outlet 32. The airflow also passes through the anode of the magnetron 42 to dissipate heat. Because the kitchen appliance in this patent is a microwave oven, the baking system 9 in the kitchen appliance also generates high temperatures when in operation, affecting the temperature rise of the microwave generator assembly 4 in the microwave system 8. This causes the microwave generator assembly 4 to be unable to maintain a good operating temperature and can only dissipate heat through the rack heat dissipation fan 91 located on one side of the microwave system 8. This patent, however, independently provides a heat dissipation fan 34 in the microwave system 8 to independently dissipate heat for the microwave generator assembly 4 in the microwave system 8, ensuring that the microwave generator assembly 4 always maintains a good operating temperature. In addition, in the microwave system 8 of this patent, the magnetron assembly 422 on the magnetron 42 is directly connected to the heat dissipation duct 33 through the open window 424, and is directly cooled by the heat dissipation fan 34, further increasing the heat dissipation effect of the heat dissipation fan 34 on the magnetron 42.

[0072] Furthermore, the waveguide assembly 5 includes a waveguide box 51 and a tuning rod 513. The waveguide assembly 5 is connected to the outside of the antenna 425 of the magnetron 42. The waveguide box 51 is formed by welding two upper and lower panels formed by stretching. The upper and lower panels are stretched in advance to form the outer contour of the waveguide box 51 after welding. Figure 5 、 7 As shown in Figures 8 and 9, an inclined first waveguide channel 511 and a horizontal second waveguide channel 512 are sequentially formed. The first waveguide channel 511 is connected to the antenna 425. The microwaves emitted by the microwave generator assembly 4 first enter the first waveguide channel 511 and then enter the second waveguide channel 512. The purpose of providing the inclined first waveguide channel 511 is that the microwave generator assembly 4 generally has a certain height, and the waveguide box 51 generally fits on the outer liner 22. Therefore, the inclined first waveguide channel 511 is provided to compensate for the height difference between the microwave generator assembly 4 and the second waveguide channel 512, thereby eliminating the need to adjust the structure of the microwave generator assembly 4 and reducing manufacturing difficulty.

[0073] Furthermore, the first waveguide channel 511 is further provided with a waveguide clearance groove 514 opposite to the microwave generating direction of the microwave generator assembly 4. Figure 8 As shown, the waveguide clearance groove 514 is formed on the upper side panel of the waveguide box 51 and is specifically a right-angle structure. The main purpose of providing the waveguide clearance groove 514 is to prevent the outer wall of the waveguide box 51 from being too close to the antenna 425, thereby preventing the two from being too close and interfering with the normal transmission of microwaves.

[0074] Furthermore, the tuning rod 513 is fixed in the second waveguide channel 512, combined with Figure 7 、 8 As shown, the tuning rod 513 is a metal part, which is fixed to the upper side panel of the waveguide box 51 by welding the fasteners when leaving the factory. Its function is to reflect the microwaves in the waveguide box 51 to make the transmission of microwaves more uniform.

[0075] Furthermore, the waveguide box 51 is provided with a stirring opening 515, and accordingly, the stirring assembly 6 includes a stirring driving member 61, a stirring rod 62 and a stirring plate 63. Figure 5-8 As shown, the stirring opening 515 is a circular opening opened in the second waveguide channel 512; the stirring rod 62 is rotatably arranged in the upper panel of the waveguide box 51 through a bearing member, and the lower end of the stirring rod 62 is inserted into the stirring opening 515, and the stirring drive member 61 includes a stirring motor 611, which is driven by the stirring motor 611 to rotate a first stirring drive piece 612; one end of the stirring rod 62 is provided with a second stirring drive piece 613 intersecting with the first stirring drive piece 612, which is used to drive the stirring rod 62 to rotate by the first stirring drive piece 612 and the second stirring drive piece 613. The stirring piece 63 is connected to the stirring rod 62 and is located outside the stirring opening 515. The stirring piece 63 is driven to rotate by the stirring rod 62.

[0076] Specific reference Figure 5 、 6 As shown, a stirring bracket is provided outside the waveguide box 51, and the stirring motor 611 is provided on the stirring bracket. A vertically arranged first stirring drive piece 612 is provided on the motor shaft of the stirring motor 611. A horizontally arranged second stirring drive piece 613 is provided on the end of the stirring rod 62 exposed outside the waveguide box 51. The second stirring drive piece 613 includes a torsion spring, which is sleeved on the end of the stirring rod 62 exposed outside the waveguide box 51. One end of the torsion spring is connected to the stirring rod 62 by plugging, and the other end extends outward to intersect with the first stirring drive piece 612. At this time, the stirring motor 611 rotates to drive the first stirring drive piece 612 to rotate, and the first stirring drive piece 612 drives the second stirring drive piece 613 to rotate, thereby rotating the stirring rod 62, and the stirring rod 62 drives the stirring piece 63 located outside the stirring opening 515 to rotate.

[0077] The stirring plate 63 is specifically a fan-shaped plate. In fact, the stirring plate 63 is located between the outer bladder 22 and the inner bladder 21, and a stirring portion 211 is provided between the outer bladder 22 and the inner bladder 21 outside the stirring plate 63. Specifically, the top of the inner bladder 21 is arched upward and connected to the outer bladder 22 to form a stirring portion 211 with a trapezoidal cross-section. A stirring cavity 212 is formed in the stirring portion 211. The inlet end of the stirring portion 211 is connected to the microwave generator assembly 4, and the outlet end of the stirring portion 211 is connected to the inner cavity 213. The stirring plate 63 is rotatably provided in the stirring portion 211. Specifically, the lower end of the stirring rod 62 is inserted into the stirring opening 515, and the stirring plate 63 is located in the stirring portion. A wave-transparent sealing plate 64 is provided on the inner bladder 21 at the end of the stirring portion 211 to seal the stirring portion 211. The stirring plate 63 is used to be placed in the stirring part 211. When microwaves are emitted by the microwave generator assembly 4, the microwaves pass through the waveguide box 51 and are sent out through the stirring opening 515 on the waveguide box 51 to contact the stirring plate 63 located in the stirring part 211. The microwaves are dispersed by the rotation of the stirring plate 63 and pass through the wave-transparent sealing plate 64 to enter the inner pot 21 for heating. Microwaves will be reflected back and forth in the closed waveguide box 51, the stirring channel 211 and the inner pot, and will eventually be "stuck" at certain fixed positions to form standing waves, resulting in uneven energy distribution. The metal stirring plate 63 will continue to reflect microwaves when rotating. Each reflection changes the electromagnetic boundary conditions of the closed cavity, forcing the originally fixed standing wave mode to be unable to exist stably. It must be continuously reorganized into a new standing wave mode to generate more modes of field waves, so that the hot spots in the original closed cavity, that is, in the inner pot 21, are dispersed to different positions, and the cold spots are repeatedly irradiated, ultimately making the microwave energy distribution in the entire inner pot 21 more uniform and the food heated more evenly.

[0078] This patent realizes the driving of the stirring rod 62 by the stirring motor 611 through the first stirring drive piece 612 and the second stirring drive piece 613. Its advantage is that it is convenient for the installation of the stirring motor 611 to have a little error, thereby speeding up the installation speed of the stirring motor 611; at the same time, by setting the second stirring drive piece 613 as a torsion spring, the contact between the first stirring drive piece 612 and the second stirring drive piece 613 is smoother, so that the stirring rod 62 can rotate better.

[0079] Furthermore, the stirring plate 63 is fan-shaped, and a protruding stirring protrusion 631 is provided on both sides of the fan-shaped edge. Figure 10 、 11As shown, one end of the stirring plate 63 is fixed to the bottom of the stirring rod 62 by a fastener. The stirring plate 63 is directly manufactured into a fan shape by stamping, and a raised stirring protrusion 631 is formed. The stirring protrusion 631 can better stir the waves when rotating, so as to make the microwave energy distribution in the inner pot 21 more uniform.

[0080] Furthermore, the stirring rod 62 includes a rotating rod portion 621 and an extension sleeve 622. The rotating rod portion 621 is rotatably arranged in the waveguide box 51 through a bearing; the extension sleeve 622 is sleeved on one end of the rotating rod portion 621; the extension sleeve 622 and the rotating rod are provided with a plurality of sliding positioning holes 623, which are used to fix the rotating rod portion 621 and the extension sleeve 622 by passing sliding positioning rods 624 through the sliding positioning holes 623. The axial connection position between the rotating rod portion 621 and the extension sleeve 622 can be changed by the sliding positioning holes 623 and the sliding positioning rods 624 thereon, thereby changing the length of the stirring rod 62 formed by the connection between the rotating rod portion 621 and the extension sleeve 622, thereby changing the position height of the stirring plate 63, and thus changing the reflection effect of the stirring plate 63 on microwaves, so as to adapt to different kitchen appliance structures.

[0081] Furthermore, the wave-transmitting sealing plate 64 is provided with a sealing plate fixing ring 641 for connecting with the inner liner 21, and a sealing plate sealing member 642 is provided between the sealing plate fixing ring 641 and the inner liner 21. Figure 5 As shown, the sealing plate fixing ring 641 is fixed to the inner side of the inner container 21, and is connected and fixed to the inner container 21 by fasteners. At this time, a clamping groove for placing the wave-transmitting sealing plate 64 is formed between the inner container 21 and the sealing plate fixing ring 641. The clamping groove is used to clamp the edge of the wave-transmitting sealing plate 64 to achieve the fixation of the wave-transmitting sealing plate 64, and the sealing plate sealing member 642 is provided at the bottom of the clamping groove to seal the gap between the wave-transmitting sealing plate 64 and the sealing plate fixing ring 641 and the inner container 21, so as to prevent the water vapor in the inner container 21 from leaking into the stirring component 6, affecting the normal operation of the stirring component 6, and increasing the stability of the oven described in this patent during operation. The sealing plate sealing member 642 can be made of silicone or rubber.

[0082] Furthermore, the sealing plate seal 642 has a first rib 6421 and a second rib 6422, and the first rib 6421 and the second rib 6422 respectively abut against the outer edge of the wave-transmitting sealing plate 64 and a side surface of the wave-transmitting sealing plate 64, as shown in FIG. Figure 5As shown, the cross-section of the sealing plate seal 642 in this patent is "L"-shaped, and it is mounted on the outer edge of the wave-transmitting sealing plate 64, so that the first rib 6421 of the sealing plate seal 642 abuts against the outer edge of the wave-transmitting sealing plate 64, and the second rib 6422 abuts against one side of the wave-transmitting sealing plate 64. At this time, the wave-transmitting sealing plate 64 is clamped by the sealing plate fixing ring 641, and the sealing plate seal 642 is limited in the clamping groove between the inner tank 21 and the sealing plate fixing ring 641. At this time, the first rib 6421 and the second rib 6422 form two seals in sequence front and back, which can better prevent water vapor in the inner cavity 213 from entering the wave stirring part 211 from the edge of the wave-transmitting sealing plate 64.

[0083] Furthermore, a clearance groove 6411 is provided on the edge of the sealing plate fixing ring 641, and the clearance groove 6411 accommodates the first rib 6421 or the second rib 6422 of the sealing plate sealing member 642. Figure 5 As shown, the clearance groove 6411 is annular and is used to accommodate the second rib 6422 to provide an installation space for the installation of the second rib 6422.

[0084] Combine Figure 12 、 13 As shown, the baking system 9 in this patent includes a first heating tube 92 arranged on the top of the inner pot 21. The first heating tube 92 is located just in front of the wave-transmitting sealing plate 64. Considering that the kitchen appliance described in this patent has a microwave system 8, the first heating tube 92 in this patent is arranged in a "concave" shape, and a wave-transmitting opening 921 opposite to the wave-transmitting sealing plate 64 is formed thereon, so that most of the structure of the first heating tube 92 is no longer blocked by the wave-transmitting sealing plate 64, thereby reducing the interference of the first heating tube 92 on the operation of the microwave system 8.

[0085] like Figure 13 As shown, in fact, the baking system 9 also includes an air-frying component arranged in the rear side of the inner pot 21, and the air-frying component includes a second heating tube 93 on the rear side of the inner pot 21; in fact, a concave cavity is formed on the rear side of the inner pot 21, and the second heating tube 93 is provided in the concave cavity. The second heating tube 93 is arranged in a circular shape, and an air-frying fan 94 is provided therein. At the same time, an air-frying ventilation plate 95 is provided on the air-frying fan 94. The temperature is increased by the second heating tube 93 and is sent to the inner pot 21 through the air-frying ventilation plate 95 by the air-frying fan 94, thereby realizing the air-frying effect of the kitchen appliance.

[0086] The above embodiments are only preferred embodiments of the present patent application and are not intended to limit the scope of protection of the present patent application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present patent application should be included in the scope of protection of the present patent application.

[0087] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of this patent application. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size, without affecting the efficacy and purpose that can be achieved by this patent application, should still fall within the scope of the technical content disclosed in this patent application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of this patent application. Changes or adjustments in their relative relationships, without substantially changing the technical content, should also be regarded as the scope of the implementation of this patent application.

[0088] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element through an intervening element.

[0089] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

Claims

1. A microwave oven and steamer kitchen appliance, characterized by: The invention comprises a frame (2), wherein an inner pot (21) is provided in the frame (2), and an inner cavity (213) for placing food is provided in the inner pot (21); and a steam heating system (7), a baking system (9), and a microwave system (8) for heating food are provided in the frame (2); The microwave system (8) includes a microwave generator assembly (4) and a stirring wave assembly (6); The inner container (21) is provided with a stirring portion (211), a stirring cavity (212) is provided in the stirring portion (211), and the stirring cavity (212) is connected to the microwave generator assembly (4) and the inner cavity (213) respectively; The stirring assembly (6) comprises a stirring plate (63) rotatably arranged in the stirring portion (211); a wave-transmitting sealing plate (64) is provided between the stirring cavity (212) and the inner cavity (213) to separate the two, and a sealing plate sealing member (642) is provided on the edge of the wave-transmitting sealing plate (64).

2. The microwave oven and steamer kitchen appliance according to claim 1, characterized in that: It also includes a sealing plate fixing ring (641), which blocks the side of the stirring portion (211) facing the inner liner (21) and is connected to the inner liner (21) at the outer edge of the stirring portion (211); the edge of the wave-transmitting sealing plate (64) is clamped between the sealing plate fixing ring (641) and the inner liner (21); and the sealing plate sealing member (642) is provided between the sealing plate fixing ring (641) and the inner liner (21).

3. The microwave oven and steamer kitchen appliance according to claim 2, characterized in that: The sealing plate seal (642) has a first rib (6421) and a second rib (6422), and the first rib (6421) and the second rib (6422) respectively abut against the outer edge of the wave-transmitting sealing plate (64) and a side surface of the wave-transmitting sealing plate (64).

4. The microwave oven and steamer kitchen appliance according to claim 3, characterized in that: A clearance groove (6411) is provided on the edge of the sealing plate fixing ring (641), and the clearance groove (6411) accommodates the first retaining edge (6421) or the second retaining edge (6422) of the sealing plate sealing member (642).

5. The microwave oven and steamer kitchen appliance according to claim 1, characterized in that: The microwave system further comprises: A microwave heat dissipation bracket (3) is used to be arranged on a microwave oven; an air inlet (31) and an air outlet (32) are provided on the microwave heat dissipation bracket (3); a heat dissipation duct (33) communicating with the air inlet (31) and the air outlet (32) is formed inside the microwave heat dissipation bracket (3); a heat dissipation fan (34), disposed in the heat dissipation duct (33); The microwave generator assembly (4) is arranged in the heat dissipation duct (33) and is used to generate microwaves; The heat dissipation fan (34) is responsible for generating airflow to cool the microwave generator assembly (4).

6. The microwave oven and steamer kitchen appliance according to claim 5, characterized in that: The microwave heat dissipation bracket (3) comprises: A heat dissipation support base (35) is used for being arranged on a microwave oven; The heat dissipation support upper cover (36) is fixed on the heat dissipation support base (35); the heat dissipation air duct (33) is formed between the heat dissipation support base (35) and the heat dissipation support upper cover (36).

7. The microwave oven and steamer kitchen appliance according to claim 5, characterized in that: The microwave generator assembly (4) includes a frequency converter (41) and a magnetron (42) connected to each other, the heat dissipation bracket upper cover (36) includes a first upper cover portion (361) and a second upper cover portion (362), and the frequency converter (41) is installed in the first upper cover portion (361); The magnetron (42) comprises a mounting shell (421) and a magnetron assembly (422) arranged in the mounting shell (421). Both sides of the mounting shell (421) are provided with communicating open windows (424). The second upper cover (362) is buckled onto the portion of the mounting shell (421) provided with the open windows (424) and is connected to the heat dissipation bracket base (35).

8. The microwave oven and steamer kitchen appliance according to claim 5, characterized in that: It also includes a waveguide component (5), which is connected to the microwave generator component (4) and is used to guide microwaves; the waveguide component (5) includes: A waveguide box (51) connected to the microwave generator assembly (4); a first inclined waveguide channel (511) and a second horizontal waveguide channel (512) are sequentially formed in the waveguide box (51); and The disruptor block (513) is made of metal and is fixed in the second waveguide channel (512).

9. The microwave oven and steamer kitchen appliance according to claim 8, characterized in that: The waveguide box (51) is provided with a stirring opening (515), and the stirring component (6) is connected to the waveguide component (5); the stirring component (6) comprises: A stirring wave driving member (61) fixed on the waveguide box (51); A stirring rod (62) is inserted into the stirring opening (515) and is driven to rotate by the stirring driving member (61); and The stirring plate (63) is connected to the stirring rod (62) and is located outside the stirring opening (515); the stirring plate (63) is driven to rotate by the stirring rod (62).

10. The microwave oven and steamer kitchen appliance according to claim 9, characterized in that: The stirring rod (62) comprises: a rotating rod (621) rotatably disposed in the waveguide box (51); and An extension sleeve (622) is sleeved on one end of the rotating rod (621), and the other end is connected to the stirring plate (63); a plurality of sliding positioning holes (623) are provided on the extension sleeve (622) and the rotating rod, and are used to fix the rotating rod (621) and the extension sleeve (622) by passing sliding positioning rods (624) through the sliding positioning holes (623).

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